$(document).ajaxSend(function(e,xhr,opt){
    var token = localStorage.getItem("user_token");
    xhr.setRequestHeader("user_token_header",token);
});

function getUserInfo(url) {
    $.ajax({
        type: "get",
        url: url,
        success:function(result) {
            if(result.code == "SUCCESS" && result.data != null) {
                var userInfo = result.data;
                $(".left .card h3").text(userInfo.userName);
                $(".left .card a").attr("href", userInfo.githubUrl);
            }else {
                alert(result.errMsg);
            }
        },
        error:function(error) {
        if(error != null && error.status == 401) {
            location.href = "blog_login.html";
        }
      }
    });
}
function logout() {
    //删除token
    localStorage.removeItem("user_token");
    location.href = "blog_login.html";
}